The school's Board of Governors voted to pay the former secretary of state under President George W. Bush and national security adviser $35,000 for her appearance at the May 18 ceremony.
But several faculty members and students want the invitation rescinded because of Rice's role in the Iraq War.
University President Robert Barchi and other school leaders have resisted the calls to "disinvite" Rice, saying the university welcomes open discourse on controversial topics.
